.pure-gap {
    display: block;
    height: var(--pure-gap-size, var(--pure-gap-size-prop, 1em));
    width: 100%;
    background: var(--pure-gap-background);
}

.pure-gap-inline {
    display: inline-flex;
    width: var(--pure-gap-size, var(--pure-gap-size-prop, 1em));
    height: var(--pure-gap-height, 0.75em);
    vertical-align: var(--pure-gap-vertical-align, baseline);
}